refactor(memobird): improve portability with dependency checks and error handling

skills/memobird/scripts/memobird_print.py

@@ -1,14 +1,28 @@
 #!/usr/bin/env python3
 import sys
 import os
-import requests
 import json
 import base64
 from io import BytesIO
 from random import randint
-from PIL import Image as PILImg, ImageOps
 import argparse
 
+# Dependency Check
+MISSING_DEPS = []
+try:
+    import requests
+except ImportError:
+    MISSING_DEPS.append("requests")
+try:
+    from PIL import Image as PILImg, ImageOps
+except ImportError:
+    MISSING_DEPS.append("Pillow (PIL)")
+
+if MISSING_DEPS:
+    print(f"Error: Missing dependencies: {', '.join(MISSING_DEPS)}")
+    print("Please install them using: pip install " + " ".join(["requests", "Pillow"]))
+    sys.exit(1)
+
 # Default IP for Moritz's Memobird
 DEFAULT_HOST = "192.168.10.165"
 
@@ -48,6 +62,14 @@ class MemobirdSender:
             resp = requests.post(self.uri, json=payload, timeout=10)
             resp.raise_for_status()
             return resp.status_code
+        except requests.exceptions.ConnectTimeout:
+            print(f"Error: Connection to Memobird at {self.host} timed out.")
+            print("Check if the printer is powered on and on the same network.")
+            sys.exit(1)
+        except requests.exceptions.ConnectionError:
+            print(f"Error: Could not connect to Memobird at {self.host}.")
+            print("Verify the IP address and network connectivity.")
+            sys.exit(1)
         except Exception as e:
             print(f"Error sending to Memobird: {e}")
             sys.exit(1)